smeagol/resources/public/html-includes/photoswipe-boilerplate.html

<div class="gallery" id="gallery{{index}}">
    <div class="pswp" id="pswp-{{index}}" tabindex="-1" role="dialog" aria-hidden="true">

        <!-- this is the whole of the photoswipe boilerplate as documented
            [here](https://photoswipe.com/documentation/getting-started.html) with the
            outermost div removed; it is supplied by the function
            `smeagol.extensions.photoswipe/photoswipe-processor`, q.v. -->
        <!-- Background of PhotoSwipe.
                It's a separate element as animating opacity is faster than rgba(). -->
        <div class="pswp__bg"></div>

        <!-- Slides wrapper with overflow:hidden. -->
        <div class="pswp__scroll-wrap">

            <!-- Container that holds slides.
                    PhotoSwipe keeps only 3 of them in the DOM to save memory.
                    Don't modify these 3 pswp__item elements, data is added later on. -->
            <div class="pswp__container">
                <div class="pswp__item"></div>
                <div class="pswp__item"></div>
                <div class="pswp__item"></div>
            </div>

            <!-- Default (PhotoSwipeUI_Default) interface on top of sliding area. Can be changed. -->
            <div class="pswp__ui pswp__ui--hidden">

                <div class="pswp__top-bar">

                    <!--  Controls are self-explanatory. Order can be changed. -->

                    <div class="pswp__counter"></div>

                    <button class="pswp__button pswp__button--close" title="Close (Esc)"></button>

                    <button class="pswp__button pswp__button--share" title="Share"></button>

                    <button class="pswp__button pswp__button--fs" title="Toggle fullscreen"></button>

                    <button class="pswp__button pswp__button--zoom" title="Zoom in/out"></button>

                    <!-- Preloader demo https://codepen.io/dimsemenov/pen/yyBWoR -->
                    <!-- element will get class pswp__preloader active when preloader is running -->
                    <div class="pswp__preloader">
                        <div class="pswp__preloader__icn">
                            <div class="pswp__preloader__cut">
                                <div class="pswp__preloader__donut"></div>
                            </div>
                        </div>
                    </div>
                </div>

                <div class="pswp__share-modal pswp__share-modal--hidden pswp__single-tap">
                    <div class="pswp__share-tooltip"></div>
                </div>

                <button class="pswp__button pswp__button--arrow--left" title="Previous (arrow left)">
                </button>

                <button class="pswp__button pswp__button--arrow--right" title="Next (arrow right)">
                </button>

                <div class="pswp__caption">
                    <div class="pswp__caption__center"></div>
                </div>

            </div>

        </div>
    </div>
    <script>
        //<![CDATA[
        var gallery{{index}} = null;
        var spec{{index}} = {{spec}};
        var openGallery{{index}} = function() {
            if (gallery{{index}}) {
                try {
                    gallery{{index}}.destroy();
                }
                catch (error) {
                    console.error(error);
                }
            }
            gallery{{index}} = new PhotoSwipe(document.getElementById("pswp-{{index}}"),
                PhotoSwipeUI_Default,
                spec{{index}}.slides,
                    spec{{index}}.options);
            gallery{{index}}.init();
        };
        if (spec{{index}}.openImmediately) {
            openGallery{{index}}();
        }
        //]]>
    </script>
    <p>
        <button id="open-gallery-{{index}}" onclick="openGallery{{index}}()">Open the gallery</button>
    </p>
</div>